Diedeich schmidt



(No Model.)

D. SCHMIDT.

FIRE ESCAPE. 4 No 260,245. Patented June 27,1882.

INVBNTOR 71 XJMW ATTORNEYS.

N. PETERS. mmwumn mr. wlmamom n.c.

UNITED STATES PATENT OFFICE.

DIEDRICH SCHMIDT, OF NEW YORK, N. Y.

Fl RE-ESCAPE.

SPECIFICATION formingpart of Letters Patent No. 260,245, dated June27,1882.

Application filed February 23, 1882. (No model.)

To all whom it may concern Be it known that I, DIEDRIOH SCHMIDT, of thecity, county, and Stateof New York, have invented a new and ImprovedFire-Escape, of which the following is a full, clear, and exactdescription.

The invention consists in a swinging folding derrick-frame formed ofhinged sections, which frame is pivoted to the inner surface of the wallin such a manner that the end of the arm of this frame can be swung outof the window-opening to rest against the outer surface of the wall,from the outer end of which arm a box containing a folding chain ladderis suspended, which ladder drops from the box when the swinging bottomof the same is opened, thus permitting a person to pass down on thisladder. be folded very compactly when not in use, and can be swung outof the window-opening, ready for use in an instant.

Reference is' to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts'in all the figures.

Figure l is a longitudinal elevation of my improved fireescape, showingit folded. Fig. 2 is a longitudinal elevation of the derrick, showing itextended or unfolded. Fig. 3 is a sectional plan view of part ofthewall, showing the position of the derrick-frame when the fire-escape isin use. Fig. at is a perspective view of the box for receiving the chainladder,

. the box being shown opened and part of the chain ladder hanging fromthe same. Fig. 5 is a side elevation of the hook projecting from theouter'surface of the wall for supporting the end of thederrick-frame-when the fire-escape is in use.

'A derrick-frame, A, is formed of an upright or standard, B, and of afolding arm, 0, formed of three bars, 0 C G, pivoted to each other toform one straight arm when extended. The standard B is pivoted to theinner surface of the wall D near the window. The bar 0 of the foldingarm of the derrick-frame is braced by a bar, E, which in turn is bracedfrom the standard B by diagonals F F. The outer end of the bar 0 isbraced by a bar, G pivoted to a bar, (3?, which in turn is pivoted to abar, G, uniting the standard B and the brace-bar The derrick-frame canthe outer edge ofthe opened shutter.

E. The joints of the bars 0 (J and O C and those of the braces G G and GG are respectively directly above each other, so that the arm of thederrick-frame consists of three sections, of which one is rigidlyattached to the standard and the other two are pivoted. The inner end ofthe bar 0 and the outer end of the brace-bar G2 are connected by adiagonal brace, H.

I do not limit myself to the herein-described construction of thederrick-frame, but may modify it as circumstances may require.

The length of the bar 0 of the derrick-arm must be equal to the distancefrom the standard B to the outer edge of the window-frame opening, asshown in Fig. 3. The bar 0 must be in length equal to the thickness ofthe wall, window-casing, and shutter, and the length of the bar 0 mustbe slightly greater than the distance from the end of the bar 0 tobeyond building is not provided with shutters, the bar 0 can be shorter.

The bar 0 is provided at its outer end with a hook, I, which ispreferably swiveled. From this hook I a box, J, containing a foldingchain ladder, K, is suspended by means of a bail, L, pivoted to the endsof this box. This box J is provided with a pivoted bottom, M, providedwith a longitudinal aperture, N. A rod, 0, passes vertically through thebox J, and is provided at its upper end with a handle, P, and at itslower end with a cross-head, Q, adapted to be passed through theaperture N in the pivoted bottom M. When the pivoted bottom M is raisedand is to be locked in this position the cross -head Q is passed throughthe aperture N and turned to be at right angles to the same.

The chain ladder K consists of four chains, R, secured at the corners ofthe top of the box J, and carrying a series of recessedor other suitablemetal steps, S. p

A bracket, T, projects from the outer surface of the wall, and isadapted to support the outer end of the bar 0 when the derrickframe isswung outward. A spring-catch, U, provided with a hooked or barbedpoint,projects from the wall directly above the bracket T and preventsthe bar 0 from slipping ed the bracket T;

If the A stud or hook, V, projects from the inner surface of the wall,and serves to support the bar 0 when the derrick-frame is folded.

If desired, the swinging folding arm 0 can be formed of two sectionsonly-for instance, if the standard B is pivoted to a wall at rightangles to the window. In that case one bar or section of the arm wouldextend out of the window and the outer section could be folded againstthe outer surface of the wall.

The fire-escape is used in the following manner: Ordinarily thederrick-frame A is folded on the inner side of the wall, as shown inFig. 1. If the fire-escape is to be used, the window is raised and thederrick-arm is swung outward into the position shown in Fig. 3. The

bar 0 will raise the spring U and pass under the same on the bracket T,and will be held on the'same by this spring-hook. The bracket T thussupports the end of the bar 0 The handle P is then turned so that thecross-head Q will be parallel with the aperture N, so that the hingedbottom M can drop, thus permitting the chain ladder K, which is foldedin the box J, to drop from the bottom of the same. A person can easilyand safely descend by means of this ladder K.

The apparatus can be ornamented and varnished, so as to have an elegantappearance. The box J can be made of various sizes, according to thelength of ladder to be held in the same.

Having thus described my invention,Iclaim as new and desire to secure byLetters Patent- 1. In a fire-escape, the combination, with a swingingfolding derrick-frame pivoted to the inner side of the wall, of a boxsuspended from the end of the arm of the frame, and of a folding. ladderin this box, substantially as herein shown and described, and for thepurpose set forth.

2. In a fire-escape, the combination, with a swinging foldingderrick-frame pivoted to the inner side of the wall, of a bracket orhook projecting from the outer surface of the wall for supporting theend of the arm of the derrick-frame when the same is swung outwardagainst the outer surface of the wall, substantially as herein shown anddescribed, and for the purpose set forth.

3. In a fire-escape, the combination, with the swinging foldingderrickframe A, of the bracket T, projecting from the outer surface ofthe wall, and the spring catch or hook U above the bracket T,substantially as herein shown and described, and for the purpose setforth.

4. In a fire-escape, a derrick-frame made substantially as herein shownand described, and consisting of a pivoted standard provided with afixed arm, to which one or more arms or sections are pivoted, wherebythe end of thefra-ine can be swung out through a window-opening againstthe outer surface of the wall, as set forth.

DIEDRICH SCHMIDT.

Witnesses:

OSCAR F. GUNZ, C. Snnewrox.

